Unsteady aerodynamics of flap cove flow in a high-lift device configuration
Takeda, K., Zhang, X., Ashcroft, G.B. and Nelson, P.A. (2001) Unsteady aerodynamics of flap cove flow in a high-lift device configuration. 39th Aerospace Sciences Meeting and Exhibition, Reno, USA, 08 - 11 Jan 2001. Reston, USA, American Institute of Aeronautics and Astronautics10pp.
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The unsteady flow around the flap cove region of a three-element high lift aerofoil configuration has
been experimentally investigated using Particle Image Velocimetry (PIV) and Laser Doppler
Anenometry (LDA). Measurements were carried out in the University of Southampton 3.5m x 2.5m and
2.1m x 1.7m wind tunnels on the two-dimensional National High Lift Programme (NHLP) model in
typical landing configuration. The flow inside the flap cove resembles that of a leading-edge slat A
strong shear layer separates from the cove lip and rolls-up downstream into a series of large, coherent
vortices. These impinge on the main element surface and are seen to strike the leading edge of the flap.
The effect of the flap gap stabilising the flow is seen in Reynolds stress and turbulent kinetic energy
profiles within the flap cove. The wake of the main element trailing edge resembles a mixing layer, with
little evidence of vortex shedding.
|Item Type:||Conference or Workshop Item (UNSPECIFIED)|
|Subjects:||T Technology > TL Motor vehicles. Aeronautics. Astronautics|
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences
|Date Deposited:||26 Feb 2007|
|Last Modified:||05 Apr 2013 12:13|
|Contributors:||Takeda, K. (Author)
Zhang, X. (Author)
Ashcroft, G.B. (Author)
Nelson, P.A. (Author)
|Publisher:||American Institute of Aeronautics and Astronautics|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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